JP2008012423A - Tube type magnetic separator - Google Patents

Abstract

When a material is circulated, the bulge is eliminated and the material is not retained.
A body case includes a body case that forms a communication path including a pair of communication ports and a magnet element that is removably attached to the body case to be disposed in the communication path. 3 includes an outer tube 5 that forms the communication path 2 in a bent shape, and a magnet holder 6 that removably accommodates the magnet element 4 in the communication path 2. The outer tube 5 includes a first communication port 8. A second tube portion 11 having a second communication port 9 is provided on the outer periphery of the bottomed tube portion 10 having the bottom tube portion 10 so that the second tube portion 11 projects on the outer periphery of the bottom wall side end of the bottomed tube portion 10. And the bottom surface of the bottom wall portion 16 of the bottomed tube portion 10 is formed flush with the inner peripheral surface of the side wall portion 20 of the second tube portion 11.
[Selection] Figure 1

Description

  The present invention relates to a tubular magnet separator that is arranged in the middle of a material supply path and removes fine magnetic powder mixed in the material from the material by magnetic force.

Conventionally, a plurality of magnetic elements are arranged on the main body arranged in the material supply path in order to remove fine iron powder mixed in raw materials of food industry, chemical industry, ceramics, etc., especially high viscosity materials from the material. There has been proposed a fine iron powder removing device in which a provided lid is mounted.
As this type of fine iron powder removing device, for example, Patent Document 1 discloses a body case having a communication path having an inlet and an outlet connected to a material supply path, and a magnet element in the communication path of the body case. There is disclosed a tubular magnet separator in which the plug is detachable.
Japanese Patent Laid-Open No. 2004-16937

However, in the above-described tubular magnet separator, the body case is formed in a T-shape in which a second cylinder portion having an outlet is protruded in the middle of the outer periphery of the first cylinder portion having an inlet. One end is used as an inflow port, and the other end is used as a bulging portion for disposing the magnet element in the flow passage. For this reason, when the material is circulated through the communication path that connects the inflow port and the outflow port, the material accumulates in the bulging portion, which makes it difficult to clean the communication path and may become a hotbed of various bacteria.
Therefore, the present invention provides a tubular magnet separator that eliminates the bulge and prevents the material from staying.

In order to achieve the above object, the present invention takes the following technical means.
That is, the technical means for solving the problems in the present invention is to be provided in the body case 3 that forms the communication path 2 including the pair of communication ports 8 and 9 that communicate with the pipe P, and the communication path 2. The body case 3 includes a magnet element 4 that is removably attached to the body case 3, and the body case 3 is configured so that the outer pipe 5 that forms the communication path 2 in a bent shape and the magnet element 4 can be inserted into and removed from the communication path 2. The outer tube 5 is formed by projecting a second cylindrical portion 11 having a second communication port 9 on the outer periphery of a bottomed cylindrical portion 10 having a first communication port 8. The magnet holder 6 protrudes from the bottom wall portion 16 of the bottomed tubular portion 10 toward the first communication port 8;
The second cylinder part 11 is provided on the outer periphery of the bottom wall side end of the bottomed cylinder part 10, and the bottom surface of the bottom wall part 16 of the bottomed cylinder part 10 is the side wall of the second cylinder part 11. It is characterized by being formed flush with the inner peripheral surface of the portion 20.

According to this, the material flowing through the communication path 2 can be distributed without staying from the first communication port 8 toward the second communication port 9.
Further, the body case 3 has an opening 17 in the wall portion 16a facing the first communication port 8 of the bottomed tubular portion 10, and an outer tube forming member that projects the second tubular portion 11 on the outer periphery. 25 and a holder forming member 27 that forms a magnet holder 6 having a flange 26 projecting on the outer periphery, and the opening edge 17a of the opening 17 and the flange 26 of the holder forming member 27 are joined together. The bottom wall portion 16 is preferably formed by the above.

According to this, although the magnet holder 6 protrudes from the bottom wall portion 16 of the bottomed tube portion 10, the bottom surface of the bottom wall portion 16 of the bottomed tube portion 10 can be formed flush with each other. . Thus, the body case 3 having the communication passage 2 that prevents the material from staying is formed by connecting the bottom surface of the bottom wall portion 16 and the inner peripheral surface of the side wall portion 20 of the second cylinder portion 11 in a flush manner. It can be done.
The outer tube 5 protrudes outward from the bottom wall portion 16 of the bottomed tube portion 10 to support the magnet holder 6, and faces the communication tube 2 toward the support tube portion 41. The magnet holder 6 is preferably inserted and fixed.

Thereby, the magnet holder 6 can be removed from the outer tube 5 and cleaned.
Further, the outer tube 5 has an opening 17 in the wall portion 16a facing the first communication port 8 of the bottomed tube portion 10, and an outer tube forming member that projects the second tube portion 11 on the outer periphery. 25, and a support tube portion forming member 45 that forms a support tube portion 41 having a flange portion 44 projecting on the outer periphery, and an opening edge portion 17a of the opening portion 17 and a flange portion 44 of the support tube portion forming member 45. It is preferable that the bottom wall portion 16 is formed by joining together.
According to this, the bottom surface of the bottom wall portion 16 of the bottomed tube portion 10 can be formed flush with the bottom wall portion 16 of the bottomed tube portion 10 even though the support tube portion 41 protrudes from the bottom wall portion 16. it can. Thus, the outer tube 5 having the communication path 2 that prevents the material from staying is formed by connecting the bottom surface of the bottom wall portion 16 and the inner peripheral surface of the side wall portion 20 of the second cylinder portion 11 in a flush manner. It can be done.

  According to the tubular magnet separator of the present invention, the stagnation of the material in the communication path can be suppressed, and the cleaning in the communication path can be facilitated and the generation of germs can be suppressed.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
1 to 6 show a first embodiment of a tubular magnet separator 1 according to the present invention.
As shown in FIG. 1, the tubular magnet separator 1 according to the present embodiment is provided in the middle part of a pipe P that forms a material supply path for supplying fruit juice, dairy products and viscous materials in a production line such as the food industry. A body case 3 that is connected to the pipe P to form a communication path 2 of the material, and is attached to and detached from the body case 3. And a magnet element 4 that is freely mounted.

The body case 3 includes an outer tube 5 that forms the communication path 2, and a magnet holder 6 that is disposed in the communication path 2 and accommodates the magnet element 4 so that it can be inserted and removed.
The outer tube 5 includes an inflow port 8 and an outflow port 9 connected to the pipe line P, and an outflow port (second communication port) is formed on the outer periphery of the bottomed cylindrical portion 10 having the inflow port (first communication port) 8. It is formed by projecting a second cylinder portion 11 having a mouth 9. As a result, the communication path 2 has an L shape that is bent at right angles from the inflow port 8 toward the outflow port 9, and passes through the central axis L <b> 1 of the bottomed cylindrical portion 10 that passes through the center of the inflow port 8 and the outflow port 9. It is orthogonal to the central axis L2 of the second cylinder part 11 that performs.

The bottomed cylindrical portion 10 is formed with a flange portion 12 surrounding the inlet 8, a side wall portion 13 having the same diameter as the inlet 8, and a diameter larger than the diameter of the inlet 8. A body portion 14 is provided, and the body portion 14 and the side wall portion 13 are connected by a taper portion 15.
The second cylindrical portion 11 includes a flange portion 19 that surrounds the outlet 9 that has the same diameter as the inlet 8, and a side wall portion 20 that has the same diameter as that of the outlet 9. It protrudes from the outer periphery of the bottom wall side end of the portion 10.
Further, the inner peripheral surface of the side wall portion 20 of the second cylindrical portion 11 and the bottom surface of the bottom wall portion 16 of the bottomed cylindrical portion 10 are connected to be flush with each other. Thereby, the outer pipe | tube 5 forms the communicating path 2 in the L-shape which consists of a flush wall surface without a level | step difference.

  The magnet holder 6 includes a tube portion 21 extending from the bottom wall portion 16 of the bottomed cylindrical portion 10 of the outer tube 5 toward the outside of the inflow port 8, and a pointed plug portion 22 that closes the end portion on the inflow port 8 side. And a flange portion 23 formed on the bottom wall portion side end portion, and is formed in a bottomed cylindrical shape, and the inflow port 8 from the outside of the bottom wall portion 16 of the bottomed cylindrical portion 10 of the outer pipe 5. It is growing towards. By inserting the magnet element 4 into the magnet holder 6, the magnet element 4 is arranged in the communication path 2. The magnet holder 6 covers the magnet element 4 in a watertight manner. For this reason, even when the material is circulated through the communication path 2, there is no possibility that the material adheres to the magnet element 4.

In order to form the body case 3, first, the opening 17 is formed in the wall portion 16 a facing the inlet 8 of the bottomed cylindrical portion 10, and the second cylindrical portion 11 is formed on the outer periphery of the bottomed cylindrical portion 10. Are joined by welding or the like to form the outer tube forming member 25. Here, the inner peripheral surface of the side wall portion 20 of the second cylindrical portion 11 and the inner surface of the wall portion 16a of the bottomed cylindrical portion 10 are connected to be flush with each other.
In addition, the holder forming member 27 is formed by joining the flange portion 26 to the outer periphery on the flange portion side of the tube portion 21 of the magnet holder 6 by welding or the like.
Then, as shown in FIG. 3, the holder forming member 27 is inserted toward the opening 17 of the outer tube forming member 25, and the tip of the holder forming member 27 protrudes outward from the inflow port 8 to the outer tube forming member 25. At the same time, the flange portion 26 is opposed to the opening edge portion 17 a of the opening portion 17.

Thereafter, the bottom wall portion 16 of the bottomed tube 10 of the outer tube 5 is formed by welding the flange portion 26 and the opening edge portion 17a as shown in FIG. 4, and as shown in FIGS. The body case 3 formed by projecting the magnet holder 6 on the wall portion 16 is formed.
In this way, the second tube portion 11 is joined to the outer periphery of the bottomed tube portion 10 to form the outer tube forming member 25, and then the holder forming member 27 is joined to the outer tube forming member 25. Thus, the bottom surface of the bottom wall portion 16 of the bottomed tube portion 10 and the inner peripheral surface of the side wall portion 20 of the second tube portion 11 are formed flush with each other, and the bottomed tube portion 10 of the outer tube forming member 25 is The bottom wall portion 16 formed by the wall portion 16a and the flange portion 26 of the holder forming member 27 is formed to be flush with each other.

The outer tube forming member 25 and the holder forming member 27 constituting the body case 3 are formed of a nonmagnetic material such as a stainless material.
As shown in FIG. 6, the magnet element 4 includes a magnet bar 30 that is formed in a columnar shape and can be removably inserted into the magnet holder 6, and a head cap is provided on one end side of the magnet bar 30. A grip 33 is provided via 31 and a spring washer 32. The head cap 31 has an outer diameter that is the same as the outer diameter of the flange portion 23 of the magnet holder 6.

The magnet bar 30 is formed by fixing a plurality of short magnets 30a with the same poles facing each other across a magnetic material 30b such as an iron plate. In the magnetic material 30b, the same pole as the two short magnets 30a facing each other is excited, and the magnetic lines of force of the two magnets 30a are concentrated on one magnetic material 30b. When there is one magnetic material 30b, three poles are formed at the ends of the front and rear magnets 30a, and when there are two magnetic materials 30b, four poles are formed. An N pole and an S pole are formed.
By inserting the magnet element 4 into the magnet holder 6, the magnetic lines of force of the magnetic material 30 b of the magnet bar 30 are generated in the radial direction of the axial center of the bottomed cylindrical portion 10 that forms the outer tube 5. It will be directed inward and outward, and will cross in the direction of flow with respect to the material flowing into the communication path 2, and the magnetic flux density across the material will be denser than when there are only two pole-shaped magnets. Therefore, it is optimal for improving the influence of the magnetic lines of force on the material, that is, the adsorption efficiency of the fine magnetic powder.

As shown in FIGS. 1 and 2, when the magnet element 4 is accommodated in the magnet holder 6, the head cap 31 faces the flange portion 23 of the magnet holder 6.
An annular packing 34 is interposed between the head cap 31 and the flange 23 of the magnet holder 6.
By sandwiching the head cap 31, the packing 34, and the flange portion 23 with the clamp band 35, the magnet element 4 is held in the body case 3 while being disposed in the communication path 2.

The present embodiment is configured as described above. Next, a method of using the tubular magnet separator 1 of the present embodiment will be described.
As shown in FIG. 1, the inlet 8 of the body case 3 is connected to one pipe P that is the inflow side of the material supply path, and the outlet 9 is connected to the other pipe P that is the outflow side of the material supply path. The body case 3 is arranged in the middle of the material supply path. Then, the magnet element 4 is accommodated in the magnet holder 6.
In this state, the material is circulated in the material supply path, whereby the material circulates in the communication path 2 formed by the outer tube 5 of the body case 3. The outer tube 5 has a flat wall surface that does not step the communication passage 2 by connecting the bottom surface of the bottom wall portion 16 of the bottomed tube portion 10 and the inner peripheral surface of the side wall portion 20 of the second tube portion 11 in a flush manner. Since the material is formed in an L-shape, the material does not flow out of the flow in the communication path 2 to form a pool, and the material flowing into the communication path 2 from the inflow port 8 stays in the communication path 2. It will immediately flow out from the outlet 9 to the pipe P.

At this time, if a fine magnetic powder made of a metal such as iron or a fine magnetic material is mixed in the material flowing through the communication path 2, the fine magnetic powder is caused by the magnetic force of the magnet element 4 and the outer peripheral surface of the magnet holder 6. Adhere to. As a result, the material flows out from the outlet 9, while the fine magnetic powder in the material adheres to the outer peripheral surface of the magnet holder 6 and is collected.
Then, the supply of the material to the material supply path is stopped. Thereby, only the fine magnetic powder adhering to the outer peripheral surface of the magnet holder 6 remains in the communication path 2.
In order to remove the fine magnetic iron powder from the communication path 2, first, the magnet element 4 is taken out from the magnet holder 6. Thereby, the fine magnetic powder on the outer peripheral surface of the magnet holder 6 is released from the magnetic force. Thereafter, by flowing the washing water from the inlet 8 (or the outlet 9) toward the communication path 2, the fine magnetic powder is washed away. Also here, since the communication path 2 is formed in an L-shape consisting of a flat wall without a step, the fine magnetic powder is discharged together with the cleaning water without staying in the communication path 2. As a result, the fine magnetic powder is swept away from the communication path 2, and the communication path 2 is kept clean again.

According to the present embodiment, the material flowing into the communication path 2 from the inflow port 8 quickly flows out from the outflow port 9 and does not stay in the communication path 2. For this reason, there is no possibility that the communication path becomes a hotbed of various bacteria, and the communication path 2 can be easily cleaned.
Further, in the present embodiment, by extending the body portion 14 of the bottomed tube portion 10 in the axial center direction of the bottomed tube portion 10, as shown in FIG. It is also possible to adopt a configuration having an elongated body case 3 positioned closer to the communication path 2 than 8. As a result, most of the magnet bar 30 of the magnet element 4 is disposed over the communication path 2 except for the base end.

8 and 9 show a second embodiment of the tubular magnet separator 1 according to the present invention.
As shown in FIG. 8, in the tubular magnet separator 1 of the present embodiment, the outer tube 5 has a cylindrical support tube portion 41 that supports the magnet holder 6 disposed in the communication path 2, as the bottomed tube portion 10. The bottom wall 16 is provided. The support tube portion 41 protrudes outward from the bottom wall portion 16 of the bottomed tube portion 10 on the side opposite to the inflow port 8, and has a flange portion 42 at the tip thereof.
In order to form the outer tube 5, first, the opening portion 17 is formed in the wall portion 16 a facing the flow port 8 of the bottomed tube portion 10, and the second tube portion 11 is formed on the outer periphery of the bottomed tube portion 10. The outer tube forming member 25 is formed by joining by welding or the like.

Moreover, the support cylinder part forming member 45 is formed by joining the flange part 44 to the outer periphery of the end part opposite to the end part provided with the flange part 12 of the support cylinder part 41 by welding or the like.
Then, the support tube portion forming member 45 is inserted from the outside of the outer tube forming member 25 toward the opening portion 17, and the flange portion 44 of the support tube portion forming member 45 is opposed to the opening edge portion 17 a of the opening portion 17.
Thereafter, the flange portion 44 and the opening edge portion 17a are welded to each other so that the bottom wall portion 16 of the bottomed tube portion 10 of the outer tube 5 is formed flush with the bottom of the bottomed tube portion 10. The outer tube 5 is formed by projecting the support cylinder portion 41 on the wall portion 16.

As shown in FIG. 9, the magnet holder 6 is detachably fitted to the outer tube 5, and includes a tube portion 21 that extends through the support tube portion 41 of the outer tube 5 and extends outward from the inlet 8. In addition to a pointed plug portion 22 that closes the end portion on the inlet 8 side and a flange portion 23 formed on the end portion on the bottom wall portion 16 side, at a position facing the flange portion 12 of the support cylinder portion 41. Also includes a flange portion 47.
The pipe portion 21 of the magnet holder 6 is inserted into the support cylinder portion 41, and the pair of flanges is provided with an annular packing 34 interposed between the flange portion 42 of the support cylinder portion 41 and the flange portion 47 of the magnet holder 6. By sandwiching the portions 42 and 47 and the packing 34 with the clamp band 35, the magnet holder 6 is held by the outer tube 5 with the tube portion 21 disposed in the communication path 2, thereby forming the body case 3. Here, the inner diameter of the support cylinder portion 41 is formed slightly larger than the outer diameter of the tube portion 21 of the magnet holder 6, and an annular shape is formed between the tube portion 21 and the base end portion of the support cylinder portion 41. Thus, the communication path 2 is formed in an L-shape consisting of a flat wall surface with no step.

Further, as shown in FIG. 8, the magnet bar 4 is accommodated in the magnet holder 6, and the magnet element 4 is accommodated in the magnet holder 6 by sandwiching the head cap 31, the packing 34 and the flange portion 23 with the clamp band 35. It will be held by the body case 3.
In the present embodiment, the magnet holder 6 can be removed from the outer tube 5 as well as the magnet element 4 can be removed from the body case 3. For this reason, the magnet holder 6 can be taken out from the communication path 2 together with the magnet element 4, and the fine magnetic powder adhering to the magnet holder 6 is reliably removed from the communication path 2. Then, by removing the magnet element 4 from the magnet holder 6 removed from the outer tube 5, the fine magnetic powder on the outer peripheral surface of the magnet holder 6 is released from the magnetic force. The magnetic powder is washed away from the outer peripheral surface of the magnet holder 6.

Thus, according to the present embodiment, the fine magnetic powder can be removed from the communication path 2 without cleaning the communication path 2, and cleaning for removing the fine magnetic powder from the communication path 2 is simple. It will be something. Moreover, since it is not necessary to wash the communication path 2, the work efficiency of the work of distributing the material through the material supply path is improved.
Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments. For example, when the first communication port formed by the bottomed cylindrical portion 10 constituting the outer tube 5 is the outlet 9 and the second communication port formed by the second cylindrical portion 11 is the inlet 8 Also, the same effects as those of the above embodiment can be obtained.

If the bottom surface of the bottom wall portion 16 of the bottomed tube portion 10 is configured to be flush with the inner peripheral surface of the side wall portion 20 of the second tube portion 11, Thus, when the axis of the second cylinder portion 11 is inclined, the same effects as those of the above embodiment are obtained.
The lengths of the magnet holder 6 and the magnet bar 30 of the magnet element 4 can be changed as appropriate according to the embodiment. For example, the length of the magnet bar 30 can be changed even when the respective tips do not reach the inflow port 8. The same effect as the embodiment is achieved.

1 is a cross-sectional side view of a first embodiment of a tubular magnet separator according to the present invention. It is a sectional side view which decomposes | disassembles and shows a tubular magnet separator. It is a cross-sectional side view of an outer tube forming member and a holder forming member. It is front sectional drawing of a body case. It is a top view of a body case. It is a section side view of a magnet element. It is a cross-sectional side view which shows the other Example of 1st Embodiment of a tubular magnet separator. It is a cross-sectional side view of 2nd Embodiment of the tubular magnet separator which concerns on this invention. It is a sectional side view which decomposes | disassembles and shows a tubular magnet separator.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tube-type magnetic separator 2 Communication path 3 Body case 4 Magnet element 5 Outer tube 6 Magnet holder 8 Inlet 9 Outlet 10 Bottomed cylindrical part 11 Cylindrical part 16 Bottom wall part 17 Opening part 17a Opening edge part 20 Side wall part 25 Outside Tube forming member 26 Gutter portion 27 Holder forming member 41 Support tube portion 45 Support tube portion forming member

Claims (4)

A body case (3) forming a communication path (2) having a pair of communication ports (8, 9) communicated with the pipe (P), and a body case (3) to be disposed in the communication path (2) A magnet element (4) that is detachably mounted on the body case (3), and the body case (3) connects the outer pipe (5) that forms the communication path (2) in a bent shape and the magnet element (4). A magnet holder (6) removably accommodated in the passage (2), the outer tube (5) being second on the outer periphery of the bottomed cylindrical portion (10) having the first communication port (8). The second cylinder part (11) having a communication port (9) is projected, and the magnet holder (6) is connected to the first communication from the bottom wall part (16) of the bottomed cylinder part (10). Protruding towards the mouth (8),
The second cylinder part (11) is provided on the outer periphery of the bottom wall side end of the bottomed cylinder part (10), and the bottom surface of the bottom wall part (16) of the bottomed cylinder part (10). Is formed so as to be flush with the inner peripheral surface of the side wall portion (20) of the second cylindrical portion (11).   The body case (3) has an opening (17) in the wall (16a) facing the first communication port (8) of the bottomed cylinder (10) and the second cylinder ( 11) and an outer tube forming member (25) that projects and a holder forming member (27) that forms a magnet holder (6) projecting a flange (26) on the outer periphery, and the opening (17) 2. The bottom wall (16) is formed by joining the opening edge (17 a) and the flange (26) of the holder forming member (27). Tube type magnetic separator.   The outer tube (5) projects a support cylinder part (41) supporting the magnet holder (6) outward from a bottom wall part (16) of the bottomed cylinder part (10), and the support cylinder The tubular magnet separator according to claim 1, wherein a magnet holder (6) is inserted and fixed to the portion (41) toward the communication path (2).   The outer tube (5) has an opening (17) in the wall (16a) facing the first communication port (8) of the bottomed tube (10) and the second tube ( 11) and an outer tube forming member (25) for projecting, and a supporting tube portion forming member (45) for forming a supporting tube portion (41) projecting a flange portion (44) on the outer periphery, the opening The said bottom wall part (16) is formed by joining the opening edge part (17a) of a part (17), and the collar part (44) of a support cylinder part formation member (45), Item 4. The tubular magnet separator according to Item 3.

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